Device for making verges and pendulum-rods



2 Sheets-Sheet 1.

model.

A. E. HOTGHKISS. DEVICE FOR MAKING VERGES AND PENDULUM RODS No. 250,072;

Patented Nov. 29,1881.

' INVENTOR WITNESSES ATTORNEY N. PETERS. mum-"m, WIINIIM I) C.

2 Sheets-Sheet 2.

(Model) A. E. HOTGI-IKISS.

DEVICE FOR MAKING VERGES AND PENDULUM RODS.

Patented Nov. 29

INVENTOR (Ba/J QTTORNEY WITNESSES nlum-wire.

I UNrTE STATES PATENT OFFICE.

ARTHUR E. HOTGHKISS, OF CHESHIRE, CONNECTICUT.

DEVICE FOR MAKING VERGES AND PENDULUM-RO DS.

SPECIFICATION forming part of Letters Patent No. 250,072, dated November29, 1881.

Application filed January 25, 1881. (ModeL) To all whom it may concernBe it known that I, ARTHUR E. HOTGHKISS, of Cheshire, in the county ofNew Haven and State of Connecticut, have invented certain new and usefulImprovements in Devices for ject bein g to provide mechanism forsecurely retainin g the pallets, yoke, verge-shaft, and pendulum-wire inproper relative, position for securing such parts together; and withthis end in View my invention consists in certain details inconstruction and combinations of parts, as will hereinafter bedescribed, and pointed out in the claims.

In the accompanying drawings, Figurel is a view in perspective of myimproved device, the parts being in proper position forreceivingthedifi'erent parts of averge and the pend- Fig. 2 isa similarview, showing the different parts of the verge and the pendulum-wiresecured in place and ready for being soldered together. Fig. 3 is atransverse section of one of the pallets. Fig. 4. is the pendulum-wire.Fig. 5 is a view in perspective of the combined verge and pendulum-wire,and Fig. 6is a rear view of my improved device.

A represents the base, and B the standard, the latter being formed witha recess, a, in its upper end, within which is located a knifeedgebearing, 1).

C is the palletsupporting plate, it being secured to the standard B bymeans of one or more screws, 0. Plate 0 is provided with two notches orrecesses, D D, which are located at such distance apart and relativeangle to each other as are necessary in the pallets ofthe verge, inorder to insure the desired action on the teeth of the crown or escapewheel of a clock-movement.

E is a lever, pivoted at (1. said lever being provided with a pointedend, 6, which is held down over the lower recess or notch, D, by meansof the spring F acting against its long arm.

G is a lever, pivoted at g, and provided with a sharp pointed end, g,which is held down over the recess D by means of a spring, G.

An upright shaft, H, is attached to or connected with the standard B,the upper end thereof being provided with a knife-edge bearing, 1). Alever, I, is pivoted at i, and is provided with a bearing-point, i,which may be moved in line with the bearings b b, and the point t" beretained in its depressed position by means of the spring 6 The lever Imay be swung around so as to carry the point 2" out of line with thebearings 11 b. To the under side of lever I is secured a pin, J, whichengages with a pin, j, attached to standard B, and thus limits themovement of the lever in one direction.

K is a flat spring, secured to the standard B by means of a screw, thefree end of the spring being out of contact with the standard.

L is a gage-block. having a notch, 1, formed in one end thereof for thereception of the pendulum-wire. The opposite end of the block L isprovided with an elongated slot, Z, through which passes a screw, L. Bythis construction the gage-block may be adj ustedlengthwise, and thusreadily secured in any desired position.

M is a spring-clamp, pivoted at m, and adapted to be swung around overthe pendulum wire to hold it in place.

N represents one of the pallets, which is preferablymade asfollows:Steel wireis rolled to the form of a knife-edge, as illustrated in Fig.3, and is then hardened and polished and severed into the desiredlengths for pallets.

O is the verge-yoke, having two triangular or V-shaped openings formedtherein, within which are secured the V-shaped pallets N. A round holeis formed in the yoke for the insertion of one end of the pendulum-wire.

P is the pendulum-wire, one end thereof being provided with a hook, p.Having described the construction and relative arrangement of thedifferent parts of my improved device,I will now describe the method ofoperating its several parts.

The outer ends of levers E and G are depressed, thereby raising theirpointed ends from the notches or recesses D D in the palletsupportingplate. Pallets N, of the form shownin Fig. 3, are then inserted in thenotches or recesses D Dand the outer ends of the levers released,thereby allowing the lever-springs to cause the points 0 and g to restupon the backs of the pallets and secure them against displacement. Ayoke, O, of the form shown, is then placed onto a verge-shaft, O, andthe V-shaped bearings of the latter seated upon the sharp-pointed bearings b b. Lever I is then swung around on its pivot and its point placedon the top of the verge-shaft. The lever being released, the springconnected therewith serves to press the point 6 against the verge-shaft,and thus prevent any accidental displacement of the latter. The hookedend 11 of the pendulumwire is inserted in the hole in the yoke O, andthe latter forced back and the projecting ends of the pallets forcedinto the V-shaped holes or openings formed therein. The lower end of thependulum-wire is inserted in the notch l in the gage-block L, andsecured therein by means of the pivotal clamp M, which is swung aroundover the pendulum wire, the latter being prevented from becomingdisengaged from the yoke by means of the spring K, upon which rests theupper end thereof. The parts having all been secured in position asdescribed, solder is applied to the outer surface of the yoke, andserves to secure the verge-shaft, pallets, pendulum-wire, and yoketogether, and all in proper position for being placed on a clockmovement and put into operation without other fitting.

The gage-block L may be adjusted so that the pallets and pendulum-wirewill sustain such relative position one with the other that when thependulum is applied the escapement will be practically perfect withoutother fitting.

This improved device produces a great saving in the manufacture ofverges, as it enables the parts to be quickly attached to each other andgreatly simplifies the labor and materially reduces their cost; and,further, by its em ployment the combined verges and pendulums are madeuniform in shape and perfect in opera tion.

Instead of employing two lovers for retaining the pallets in position inthe pallet-supporting plate, one lever may be arranged to effect thesame result. In such construction the single lever would be providedwith two holding-prongs of such shape that it would fit upon bothpallets and retain them in place.

It is evident that many slight changes in the construction of thedifferent parts of the device might be resorted to without involving adeparture from the scope of my invention, and hence I would have itunderstood that I do not restrict myself to the exact construction andarrangement of parts shown and described; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, with a pallet-supporting block and levers forretaining the pallets therein, of supports on opposite sides of thepalletblock for supporting the verge-shaft, substantially as set forth.

2. The combination, with a pallet-supporting block or plate and devicesfor retaining the pallets in place, of supports on opposite sides of thepallet-block for supporting the verge-shafts, and a lever adapted toprevent the displacement of the verge-shaft, substantially as set forth.

3. The combination, with devices for retaining the pallets andverge-shaft in place, of a device for retaining the pendulum-wire in theverge-yoke until secured thereto by solder, substantially as set forth.

4. The combination, with devices for retaining the pallets andverge-shaft in place, of devices for retaining the pendulumwvire in theverge-yoke and devices for securing the lower end of the pendulum-wirein any desired adjustment, substantially as set forth.

,5. The combination, with devices for securing the pallets andverge-shaft in position, of an adjustable pendulum-wire gage-block, anda clamp for retaining the pendulunrwirc in position, substantially asset forth.

6. A device for fitting combined pendulumwire and verge, consisting,essentially, of a pallet-supporting block or plate, spring-pressed leveror levers for securing the pallets in place, a spring-pressed lever forsecuring the vergeshaft in place, a spring for securing thependulum-wire in the verge-yoke, and an adjustable gage-block andpivoted spring-clamp for retaining the pendulum-wire in properadjustment, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this14th day of September 1880.

ARTHUR E. HOTOHKISS.

Witnesses:

A. W. BRIGHT, CHARLES P. WEBs'rEn.

